kamis 7-08-08

menyolder cabel DB8 bulat danDB9 female
Serial port bersifat asinkron dimana dapat mengirimkan data sebanyak 1 bit dalam tiap
satu waktu. Port yang digunakan biasanya menggunakan konektor DB9.
DB9 mempunyai 9 pin yaitu:
keterangan:



DB9 female




DB9 male

· pin 1 = Data Carrier Detect (DCD)
· pin 2 = Received Data (RxD)
· pin 3 = Transmitted Data (TxD)
· pin 4 = Data Terminal Ready (DTR)
· pin 5 = Signal Ground (common)
· pin 6 = Data Set Ready (DSR)
· pin 7 = Request To Send (RTS)
· pin 8 = Clear To Send (CTS)
· pin 9 = Ring IndicatorTabel keterangan pin DB9

Function Signal Pin DTE DCE
Data
TxD 3 O I
RxD 2 I O
Handshake
RTS 7 O I
CTS 8 I O
DSR 6 I O
DCD 1 I O
DTR 4 O I
Common Com 5 - -
Other RI 9 I O